A5044291004- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supramolecular Chemistry and Complexes
- Supramolecular Self-Assembly in Materials
- Magnetism in coordination complexes
- Luminescence and Fluorescent Materials
- Nanoplatforms for cancer theranostics
- Crystallography and molecular interactions
- Pickering emulsions and particle stabilization
- Surface Chemistry and Catalysis
- Polyoxometalates: Synthesis and Applications
- Mesoporous Materials and Catalysis
- Catalytic Processes in Materials Science
- Molecular Junctions and Nanostructures
- Membrane Separation and Gas Transport
- Machine Learning in Materials Science
- Molecular Sensors and Ion Detection
- Gas Sensing Nanomaterials and Sensors
- Porphyrin and Phthalocyanine Chemistry
- Nanocluster Synthesis and Applications
- Catalysis and Oxidation Reactions
- Nanopore and Nanochannel Transport Studies
- Lanthanide and Transition Metal Complexes
Kyoto University
2016-2025
Material Sciences (United States)
2012-2025
Kyoto Katsura Hospital
2018-2023
Waseda University
2020-2021
King Abdullah University of Science and Technology
2021
University of Cambridge
2021
Government of the United States of America
2021
Forestry and Forest Products Research Institute
2020
Parul University
2020
CSIRO Manufacturing
2016
Core-shell structured ZIF-8@ZIF-67 crystals are well-designed and prepared through a seed-mediated growth method. After thermal treatment of crystals, we obtain selectively functionalized nanoporous hybrid carbon materials consisting nitrogen-doped (NC) as the cores highly graphitic (GC) shells. This is first example integration NC GC in one particle at nanometer level. Electrochemical data strongly demonstrate that this material integrates advantageous properties individual GC, exhibiting...
To create a functionalized porous compound, amide group is used in framework to produce attractive interactions with guest molecules. avoid hydrogen-bond formation between these groups our strategy was build three-dimensional (3D) coordination network using tridentate ligand as the three-connector part. From Cd(NO3)2.4H2O and 3D polymer (PCP) based on octahedral Cd(II) centers, {[Cd(4-btapa)2(NO3)2].6H2O.2DMF}n (1a), obtained (4-btapa = 1,3,5-benzene tricarboxylic acid...
Chemosensors detect a single target molecule from among several molecules, but cannot differentiate targets one another. In this study, we report molecular decoding strategy in which host domain accommodates class of molecules and distinguishes between them with corresponding readout. We synthesized the by embedding naphthalenediimide into scaffold an entangled porous framework that exhibited structural dynamics due to dislocation two chemically non-interconnected frameworks. An intense...
A growing attachment: Porous coordination polymer (PCP) nanorods are synthesized by modulation of the equilibria between framework components, which regulates rate extension and crystal growth. Investigation growth mechanism TEM indicates that face-selective on surfaces PCP crystals enhances anisotropic an oriented attachment mechanism.
Nanoporous carbon (NPC) is prepared by direct carbonization of Al-based porous coordination polymers (Al-PCP). By applying the appropriate temperature, both high surface area and large pore volume are realized for first time. Our NPC shows much higher porosity than other materials (such as activated carbons mesoporous carbons). This new type material exhibits superior sensing capabilities toward toxic aromatic substances.
Size Affects Shape Porous molecular framework materials can adopt a different phase when guest molecules absorb and uniformly distort the framework. Usually returns to its original shape guests desorb. Sakata et al. (p. 193 ) noted that because surface stress drives this process, it might be avoided in smaller crystals. Indeed, flexible porous coordination polymer, [Cu 2 (dicarboxylate) (amine)] n , could retain structure induced by such as methanol if crystallites were made sufficiently...
A simple and straightforward method combines microwave-assisted solvothermal conditions with the coordination modulation to achieve size-controlled formation of porous polymer (PCP), [Cu3(btc)2] (where btc represents benzene-1,3,5-tricarboxylate) in nano/micro regimes. The addition a monocarboxylic acid modulator reaction mixture greatly influenced morphology resulting sample, through competitive interactions during crystal process. By adjusting concentration dodecanoic additive, we could...
A facile route has been found to prepare Prussian blue (PB) hollow particles with a cubic shape (see picture). With PB mesocrystals used as starting material, interiors were created through controlled chemical etching in the presence of poly(vinylpyrrolidone). The cavities and particle sizes could be tuned by changing synthetic conditions, original crystallinity was preserved even after formation interior hollows.
The design of crystal morphology, or exposed facets, has enabled the development (e.g., catalytic activities, material attributes, and oriented film formation) porous coordination polymers (PCPs) without changing compositions. However, because growth mechanisms are not fully understood, control morphology still remains challenging. Herein, we report [Cu(3)(btc)(2)](n) (btc = benzene-1,3,5-tricarboxylate) by modulation method (modulator n-dodecanoic acid lauric acid). A morphological...
The self-assembly of a series hexadehydrotribenzo[12]annulene (DBA) derivatives has been scrutinized by scanning tunneling microscopy (STM) at the liquid−solid interface. First, influence core symmetry on network structure was investigated comparing two-dimensional (2D) ordering rhombic bisDBA 1a and triangular DBA 2a (Figure 1). BisDBA forms Kagomé upon physisorption from 1,2,4-trichlorobenzene (TCB) onto highly oriented pyrolytic graphite (HOPG). Under similar experimental conditions,...
MOF on MOF: Core-shell porous coordination polymer (PCP) crystals are fabricated at the single-crystal level by epitaxial growth in solution. Synchrotron X-ray diffraction measurements unveiled structural relationship between shell crystal and core crystal, where in-plane rotational compensates difference lattice constant.
A critical materials challenge over the next quarter century is sustainable use and management of world's natural resources, particularly scarcest them. Chemistry's ability to get more from less epitomized by porous coordination polymers, also known as metal-organic frameworks (MOFs), which a minimum amount material build maximum surface areas with fine control pore size. Their large specific area tunable porosity make MOFs useful for applications including small-molecule sensing,...
Here, we report preparation of microporous carbon fibers through carbonization an Al-based porous coordination polymer (Al-PCP) with furfuryl alcohol (FA) at 1000 °C under inert gas atmosphere. During the process, Al species are aggregated to form γ-alumina nanoparticles. After carbonization, nanoparticles (from 2 10 nm) distributed over entire area. By chemical treatment HF, can be easily removed obtain pure carbon. Interestingly, fibrous morphology original Al-PCP is successfully retained...
Motile metal-organic frameworks (MOFs) are potential candidates to serve as small-scale robotic platforms for applications in environmental remediation, targeted drug delivery, or nanosurgery. Here, magnetic helical microstructures coated with a kind of zinc-based MOF, zeolitic imidazole framework-8 (ZIF-8), biocompatibility characteristics and pH-responsive features, successfully fabricated. Moreover, it is shown that this highly integrated multifunctional device can swim along predesigned...
Abstract Designed porosity in coordination materials often relies on highly ordered crystalline networks, which provide stability upon solvent removal. However, the requirement for crystallinity impedes control of higher degrees morphological versatility, or processing. Herein, we describe a supramolecular approach to synthesis amorphous polymer with controlled microporosity. The strategy entails use robust metal–organic polyhedra (MOPs) as porous monomers polymerization reaction. Detailed...
Porosity and surface area analysis play a prominent role in modern materials science. At the heart of this sits Brunauer-Emmett-Teller (BET) theory, which has been remarkably successful contribution to field The BET method was developed 1930s for open surfaces but is now most widely used metric estimation areas micro- mesoporous materials. Despite its widespread use, calculation causes spread reported areas, resulting reproducibility problems both academia industry. To prove this, analysis,...
Heterogenization of molecular catalysts via their immobilization within extended structures often results in a lowering catalytic properties due to change coordination sphere. Metal-organic polyhedra (MOP) are an emerging class well-defined hybrid compounds with high number accessible metal sites organized around inner cavity, making them appealing candidates for applications. Here, we demonstrate design strategy that enhances the dirhodium paddlewheels heterogenized MOP (Rh-MOP) and...
The development of efficient and low-cost catalysts is essential for photocatalysis; however, the intrinsically low photocatalytic efficiency as well difficulty in using recycling photocatalysts powder morphology greatly limit their practical performance. Herein, we describe quasi-homogeneous photocatalysis to overcome these two limitations by constructing ultrastiff, hierarchically porous, photoactive aerogels conjugated microporous polymers (CMPs). CMP exhibit density but high stiffness...
Precise control of spin transition temperature (T(c)) is one the most important challenges in molecular magnetism. A Hofmann-type porous coordination polymer {Fe(pz)[Pt(II)(CN)(4)]} (1; pz = pyrazine) exhibited cooperative near room (T(c)(up) 304 K and T(c)(down) 284 K) its iodine adduct {Fe(pz)[Pt(II/IV)(CN)(4)(I)]} (1-I), prepared by oxidative addition to open metal sites Pt(II), raised T(c) 100 K. DSC microscopic Raman spectra a solid mixture 1-I 1 revealed that migrated from through...
Making honeycomb: The addition of guest molecules to a linear nonporous two-dimensional network results in its transformation into honeycomb porous network. shows selectivity (see picture). Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z604782_s.pdf or from author. Please note: publisher not responsible content functionality any supporting supplied by authors. Any queries (other than missing content) should be directed...